Short description of EnCalcLU 3.0: EnCalcLU calculates the cost of water use, allowing both the real cost based on meter readings and forward prediction based on the readings and elapsed time to be calculated. The results can be saved to a log file for later analysis. The program can cope with both water and sewage volume charges, varying tax rates plus fixed charges enabling most charging models to be handled. Requires a registration code (free for personal non commercial use).